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Helium D istribution in SM18 RF H orizontal Test Bunker M9. T. Koettig, BE-RF-SRF 1 st Aug 2013. Content. Layout of the SM18 RF test area New cryogenic infrastructure => commissioning is ongoing M9 clients and requirements Proposal for the new Interconnection Valve B ox .
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Helium Distribution in SM18 RF Horizontal Test Bunker M9 T. Koettig, BE-RF-SRF 1stAug 2013
Content • Layout of the SM18 RF test area • New cryogenic infrastructure => commissioning is ongoing • M9 clients and requirements • Proposal for the new Interconnection Valve Box
Cryo Infra Upgrade of SM18 RF TF RF TEST FACILITY AREA V3 V4 V5 V6 He Guards TRANSFER LINE GALLERY M7 M9 LP/RECUP return The 6 kW Linde cold box Capacity: 25 g/s (720 l/h) of LHe 6 kW Linde Cryoplant 25 m3 Dewar 1.6 bara sat. LHe to WPU2
Cryo Infra Upgrade: 3D-layout M7 2 K M9 2 K - 4.5 K V3 2 K V4 2 K V5 4.5 K V6 4.5 K
SM18 RF TF : General PID for 2013 M9 - Service module • Warm pumping unit capacity: • 6 g/s @ 10 mbar • 12 g/s @ 20 mbar • 18 g/s @ 30 mbar Very low pressure heater: 32 kW (20 g/s)
Requirements of customers in M9 • LHC temporary connection with semi rigid bayonets: • LHe supply and GHe return, 4.5 K operation, 80 % reused later. • Hie-Isolde CM • special procedures for cool down and warm up, • 4.5 K operation + shield cooling at 50 K. • Two Venturi flow meters • CRAB cavity CM operation at T< 2 K, shield maybe at 80 K? • Helium guard, Pressure relief devices: SV at 1.8 bara, RD at 2.2 bara • Functional specs for He distribution in M9 can be found in EDMS: • https://edms.cern.ch/document/1279849/1
Test schedule in SM18 RF : horizontal bunkers • Projects: • 1 test @ 4.5K of LHC cryo module . Provisional schedule : 2013 • 2 tests @ 4.5 K of HIE-Isolde cryomodule. Provisional schedule : 2014 • 1 test @ 1.8 K of SPL half cryomodule. Provisional schedule : 2014 • x tests @ 2K of crab cavity CM. Provisional schedule : 2nd half of 2015
Venturi Flow meter: Cavity circuit at 4.5 K vapor Shield circuit at 75 K gas
Venturi Flow meter Cavity circuit at 4.5 K vapor Shield circuit at 75 K gas
SM18 RF TF : bunkers PID for 2013 QLKRF_M7 @ 1.8 K QLKRF_M9 @ 1.8 K – 4.5 K